Air outlet device

Abstract

The application discloses an air outlet device, and relates to the technical field of air outlet devices. The air outlet device comprises a hollow air shell and a flow guide installed inside the air shell. The air shell is provided with an air inlet and an air outlet, and the flow guide is located between the air inlet and the air outlet. An annular air channel is formed between the air shell and the flow guide for airflow to pass through. The width of the annular air channel is unevenly distributed along the circumference of the annular air channel. The annular air channel comprises radially opposite outer and inner air channel walls. At least a part of the outer air channel wall and at least a part of the inner air channel wall can rotate relative to each other, so that the width of the annular air channel dynamically changes. The air outlet device disclosed by the application can increase the air supply range and improve the air supply flexibility.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, specifically to an air outlet device. Background Technology

[0002] With the development of technology and the improvement of people's living standards, air supply devices such as air conditioners, fans, and blowers are being used more and more widely in homes, offices, shopping malls and other places.

[0003] In related technologies, the air outlet devices mainly use two methods: direct downward airflow and inclined directional airflow. However, direct downward airflow can only reach the area directly below the air outlet, while inclined directional airflow results in no airflow on the other side of the outlet's tilt direction. Therefore, both of these air outlet methods suffer from relatively narrow air delivery range and poor air delivery flexibility in practical applications. Summary of the Invention

[0004] In view of this, this application provides an air outlet device that can increase the air supply range and improve the air supply flexibility.

[0005] The specific technical solution adopted in this application is as follows:

[0006] This application provides an air outlet device, which includes a hollow air shell and a guide member installed inside the air shell. The air shell has an air inlet and an air outlet, and the guide member is located between the air inlet and the air outlet.

[0007] An annular air duct is formed between the air casing and the air guide for airflow. The width of the annular air duct is unevenly distributed along its circumference. The annular air duct includes an outer air duct wall and an inner air duct wall that are radially opposite each other. At least a portion of the outer air duct wall and at least a portion of the inner air duct wall can rotate relative to each other to make the width of the annular air duct dynamically change.

[0008] Optionally, the annular air duct includes a first air duct segment and a second air duct segment distributed circumferentially, wherein the width of the first air duct segment is greater than the width of the second air duct segment, and the positions of the first air duct segment and the second air duct segment in the annular air duct change with each other as the inner air duct wall and the outer air duct wall rotate relative to each other.

[0009] Optionally, at least one of the inner air duct wall and the outer air duct wall has a circumferentially asymmetrical structure, thereby forming the first air duct segment and the second air duct segment between the inner air duct wall and the outer air duct wall.

[0010] Optionally, the inner air duct wall is formed by the outer wall of the guide member, and the outer wall of the guide member has a circumferentially asymmetrical structure;

[0011] The flow guide includes a flow guide block and at least one first protrusion that protrudes radially from the flow guide block along the annular air duct, the at least one first protrusion being non-uniformly distributed in the circumferential direction of the flow guide block.

[0012] Optionally, the first protrusion is a strip-shaped protrusion connected to the circumferential sidewall of the guide block. The strip-shaped protrusion extends circumferentially along the guide block, and the central angle between the two ends of the first protrusion in the extension direction is β, where 145°≤β≤180°.

[0013] Optionally, 160°≤β≤180°.

[0014] Optionally, the angle between the edge of the lower surface of the first protrusion away from the guide block and the opening plane of the air outlet is α, 10°≤α≤45°, wherein the lower surface is the surface of the first protrusion facing the air outlet; and / or,

[0015] The angle between the edge of the external air duct wall near the air outlet and the opening plane of the air outlet is γ, where 0 < γ ≤ α.

[0016] Optionally, the air casing and the air guide satisfy: 1 / 4×(R3-R2)≤R3-R1≤1 / 2×(R3-R2);

[0017] Wherein, R1 is the maximum outer diameter of the guide element, R2 is the minimum outer diameter of the guide element, and R3 is the maximum inner diameter of the air casing.

[0018] Optionally, the air outlet device includes a first driving member, which is positioned relative to the air casing and connected to the air guide member to drive the air guide member to rotate.

[0019] Optionally, the device further includes a bracket that limits relative to the air casing, the bracket being located between the air inlet and the air outlet, wherein the bracket allows airflow to pass through;

[0020] The air guide is located between the bracket and the air outlet, and the first drive component is mounted on the bracket.

[0021] Optionally, the outer air duct wall is formed by the inner wall of the air casing, and the inner wall of the air casing has a circumferentially asymmetrical structure;

[0022] The air casing includes a shell body and at least one second protrusion that protrudes radially from the shell body along the annular air duct, the at least one second protrusion being non-uniformly distributed in the circumferential direction of the shell body.

[0023] Optionally, the second protrusion is a strip-shaped protrusion connected to the shell body, the strip-shaped protrusion extending circumferentially along the shell body, and the central angle between the two ends of the second protrusion in the extending direction is θ, 145°≤θ≤180°.

[0024] Optionally, the shell body includes a first sub-shell and a second sub-shell distributed axially along the annular air duct, the first sub-shell being in contact with the second sub-shell and being rotatable relative to the second sub-shell, wherein the first sub-shell has the air inlet, and the second sub-shell has the air outlet and the second protrusion.

[0025] Optionally, the contact point between the first sub-shell and the second sub-shell is the position where the inner diameter of the shell body is at its maximum in the radial direction.

[0026] Optionally, along the axial direction of the annular air duct, the contact mating points of the first sub-shell and the second sub-shell are offset from the outermost edge of the guide member, wherein the outermost edge of the guide member is the edge portion with the largest radial dimension on the guide member.

[0027] Optionally, along the radial direction of the guide, the second protrusion and the outermost edge of the guide face each other and are spaced apart.

[0028] Optionally, the air outlet device includes a second drive member, which limits the air outlet device panel and drives the second sub-shell to rotate relative to the first sub-shell.

[0029] Optionally, the outer side of the second sub-shell is provided with gear teeth;

[0030] The second driving element includes a second motor, the output gear of which meshes with the gear teeth of the second sub-casing to drive the second sub-casing to rotate.

[0031] Optionally, the air outlet device is a bathroom heater, a ceiling fan, or a fan light.

[0032] The air outlet device provided in this application embodiment has a hollow air casing, with a guide member located inside the air casing, thereby forming an annular air duct for airflow between the guide member and the air casing. This annular air duct has an uneven width distribution in the circumferential direction, resulting in uneven airflow volume at different positions within the annular air duct. Generally, wider positions receive a larger airflow volume, while narrower positions receive a relatively smaller airflow volume. At least a portion of the outer air duct wall and at least a portion of the inner air duct wall are rotatable relative to each other, thereby changing the width distribution of the annular air duct and achieving dynamic width changes at different positions within the annular air duct. Therefore, compared to related technologies where airflow is available on one side but not on the other, or where airflow is only vertically downward, the solution in this application embodiment increases the air delivery range and improves air delivery flexibility. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is an exploded view of an air outlet device provided in an embodiment of this application;

[0035] Figure 2 This is an exploded view of the assembly structure of a wind shell, a flow guide, and a first drive component provided in an embodiment of this application;

[0036] Figure 3 yes Figure 2 A schematic diagram of the first longitudinal section of the assembly structure shown;

[0037] Figure 4 yes Figure 2 A structural schematic diagram of the cross-section of the assembly structure shown;

[0038] Figure 5 This is a schematic diagram of the structure of a flow guide provided in an embodiment of this application;

[0039] Figure 6 yes Figure 2 A schematic diagram of the second longitudinal section of the assembly structure shown;

[0040] Figure 7 This is a schematic diagram of the structure of a wind turbine casing provided in an embodiment of this application;

[0041] Figure 8 This is a schematic diagram of the longitudinal section of an assembly structure of another wind casing, guide vane and first drive component provided in an embodiment of this application;

[0042] Figure 9 This is a schematic diagram of another wind casing structure provided in an embodiment of this application;

[0043] Figure 10 This is a schematic diagram of the assembly of the wind housing and the second drive component on the panel according to an embodiment of this application.

[0044] Figure label:

[0045] 1. Air casing; 11. Air inlet; 12. Air outlet; 13. Support; 131. Connecting part; 132. Fixing base; 14. Shell body; 141. First sub-shell; 142. Second sub-shell; 1421. Gear tooth; 15. Second protrusion; 16. Annular air duct; 161. Outer air duct wall; 162. Inner air duct wall; 163. First air duct section; 164. Second air duct section;

[0046] 2. Flow guide; 21. Flow guide block; 22. First protrusion; 221. Lower surface; 23. Outermost edge;

[0047] 3. First driving component; 31. First motor;

[0048] 4. Second drive component; 41. Second motor; 42. Output gear;

[0049] 5. Panel; 51. Air vent;

[0050] 6. Box body;

[0051] 7. Wind turbine.

[0052] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0056] This application provides an air outlet device, which can be, for example, a bathroom heater, a ceiling fan, or a ceiling-mounted light. In this application embodiment, a bathroom heater is used as an example for explanation; those skilled in the art can easily deduce the situation when the air outlet device is used in other ceiling-mounted devices.

[0057] Figure 1 This is an exploded view of an air outlet device provided in an embodiment of this application, which shows the various components of the air outlet device and their structure; Figure 2 This refers to the part of the air outlet device provided in this embodiment that constitutes the air outlet 12 assembly. For example... Figure 1 and Figure 2 As shown, the air outlet device provided in this embodiment includes a hollow air casing 1 and a guide member 2 installed inside the air casing 1. The air casing 1 has an air inlet 11 and an air outlet 12, and the guide member 2 is located between the air inlet 11 and the air outlet 12; Figure 3 As shown, an annular air duct 16 is formed between the air casing 1 and the guide member 2 for airflow to pass through. The width of the annular air duct 16 is unevenly distributed along its circumference. The annular air duct 16 includes an outer air duct wall 161 and an inner air duct wall 162 that are radially opposite each other. At least a portion of the outer air duct wall 161 and at least a portion of the inner air duct wall 162 can rotate relative to each other so that the width of the annular air duct 16 changes dynamically.

[0058] The air outlet device provided in this embodiment has a guide member 2 located inside the air housing 1, forming an annular air duct 16 between the guide member 2 and the air housing 1 for airflow. This annular air duct 16 has an uneven width distribution in the circumferential direction, resulting in uneven airflow volume at different locations within the annular air duct 16. Generally, the wider sections of the annular air duct 16 experience a larger airflow volume, while the narrower sections experience a relatively smaller airflow volume. In this embodiment, at least a portion of the outer duct wall 161 and at least a portion of the inner duct wall 162 of the annular duct 16 are rotatable relative to each other. As the outer duct wall 161 and the inner duct wall 162 rotate relative to each other, the width distribution of the annular duct 16 can be changed. This causes the duct width at previously wider locations in the annular duct 16 to narrow, and vice versa. Therefore, dynamic changes in the width of each location within the annular duct 16 are achieved, resulting in increased airflow at each location and a wider air delivery range. Thus, compared to related technologies where airflow is only available on one side and not on the other, or where airflow is only vertically downward, the solution in this embodiment increases the air delivery range and provides excellent air delivery flexibility.

[0059] The following is combined with Figures 1 to 10 This application provides a detailed description and explanation of the specific structure and advantages of the air outlet device provided in the embodiments.

[0060] The air outlet device provided in this application embodiment includes a housing 6, a panel 5, a fan housing 1, and a flow guide 2. The housing 6 has an opening on one side, and a wind-generating component, such as a fan or impeller 7, is installed inside. The panel 5, fan housing 1, and flow guide 2 are all located on the open side of the housing 6. The panel 5 and housing 6 are connected in a detachable manner; depending on actual needs, there may be a gap between the panel 5 and housing 6, or they may be directly fastened together. The fan housing 1 is installed using the panel 5 or housing 6, and the flow guide 2 is installed using the fan housing 1, panel 5, or housing 6. When there is a gap between the panel 5 and housing 6, at least a portion of the fan housing 1 and at least a portion of the flow guide 2 are located between the panel 5 and housing 6.

[0061] like Figure 1 As shown, an air vent 51 is provided on the panel 5, the fan housing 1 is positioned relative to the panel 5, and a portion of the fan housing 1 protrudes from the vent. Here, the fan housing 1 being positioned relative to the panel 5 means that at least a portion of the fan housing 1 is fixed in relative position to the panel 5. For example, the fan housing 1 can be directly and fixedly installed or movably installed on the panel 5, or the fan housing 1 can be fixedly and movably installed on the housing 6.

[0062] like Figure 2As shown, the air casing 1 is a hollow cavity structure with a large internal space to accommodate the air guide 2 and allow airflow. The air casing 1 has an air inlet 11 and an air outlet 12 spaced apart. Generally, the air inlet 11 and the air outlet 12 are positioned opposite each other so that the airflow flowing in from the air inlet 11 can quickly flow out from the air outlet 12, reducing air loss during the flow process. Of course, in some embodiments of this application, the air inlet 11 and the air outlet 12 on the air casing 1 may also be staggered.

[0063] The air guide 2 is installed inside the air housing 1, between the air inlet 11 and the air outlet 12. The air guide 2 installed inside the air housing 1 will occupy part of the internal space of the air housing 1. Therefore, after the air guide 2 is installed, an annular air duct 16 for airflow will be formed between the air housing 1 and the air guide 2. The two sides of the annular air duct 16 are connected to the air inlet 11 and the air outlet 12, respectively.

[0064] Optionally, the air outlet 12 is located at the bottom of the air housing 1, and the bottom of the air housing 1 gradually tapers inward. Along the axial direction of the air outlet 12, the further the bottom of the air housing 1 is from the guide member 2, the closer it is to the center of the air outlet 12. For example, the air housing 1 is shaped like a pot, and the inner wall of the pot-shaped air housing 1 is smoothly transitioned to reduce wind resistance during airflow.

[0065] Optionally, the guide member 2 has a bottom near the air outlet 12, and the bottom of the guide member 2 gradually approaches the center of the air outlet 12 from the peripheral edge to the center position. Exemplarily, the guide member 2 is disc-shaped, and the outer wall of the disc-shaped guide member 2 is smoothly transitioned to reduce wind resistance during airflow.

[0066] Therefore, based on the above structural design, the air outlet device provided in this application embodiment allows at least a portion of the airflow to flow from all sides towards the center of the air outlet 12 along the inner wall of the air casing 1 and the outer wall of the guide member 2 when the airflow flows out through the annular air duct 16 and the air outlet 12. This achieves the convergence of at least a portion of the airflow in front of the air outlet 12, thus avoiding the situation where there is no airflow directly below the air outlet 12 during the operation of the air outlet device. At the same time, the wind loss during the airflow process is greatly reduced. Here, "in front of the air outlet 12" refers to the position located outside the air outlet 12 and directly opposite the air outlet 12.

[0067] Furthermore, during operation, as the air casing 1 or the guide member 2 rotates, the annular air duct 16 will exhibit a circumferentially asymmetrical shape. That is, the width of the air duct on both sides of the guide member 2 is not equal, with one side being wider and the other narrower. Consequently, the air volume and velocity of the two airflows flowing out from these two sides are inconsistent. When the two airflows flowing out from these two sides flow along the duct wall towards the center of the air outlet 12 and converge, due to the asymmetry of these two airflows, they will interact with each other. The slower airflow will tend to deflect towards the faster airflow, resulting in a certain angle of airflow deflection at the convergence point. At the same time, since the guide member 2 is rotating, it will drive the airflow to rotate 360° around the circumference of the annular air duct 16, thus achieving annular air outlet. Furthermore, this airflow rotation guides the airflow to diffuse over a wider area, thereby expanding the airflow coverage; it also improves the uniformity of airflow, making the airflow more evenly distributed in space and reducing local high-speed or low-speed zones; it also makes the airflow more concentrated, reducing airflow dispersion and backflow, thereby reducing energy loss and airflow efficiency. In addition, the above design can also reduce the straightness of airflow, reducing the discomfort of direct airflow onto the human body. Compared with traditional air outlet devices in the art, the air outlet device provided in this application embodiment not only covers the area directly below the air outlet 12, but also forms a larger air outlet range during the rotation of the guide member 2, while maintaining a higher wind speed.

[0068] In the embodiments of this application, see Figure 4 The annular air duct 16 includes a first air duct section 163 and a second air duct section 164 distributed circumferentially, with the width of the first air duct section 163 being greater than the width of the second air duct section 164. That is, the annular air duct 16 has a relatively wide first air duct section 163 and a relatively narrow second air duct section 164 in the circumferential direction. Therefore, the width distribution of the annular air duct 16 in the circumferential direction is non-uniform. It is easily understood that the annular air duct 16 has an outer air duct wall 161 and an inner air duct wall 162 that are radially opposite each other, wherein the outer air duct wall 161 is formed by the outer wall of the guide member 2, and the inner air duct wall 162 is formed by the inner wall of the air casing 1. The width of the annular air duct 16 refers to the distance between the outer air duct wall 161 and the inner air duct wall 162 in the radial direction of the annular air duct 16.

[0069] In this embodiment, since the outer air duct wall 161 and the inner air duct wall 162 of the annular air duct 16 are rotatable relative to each other, the positions of the first air duct segment 163 and the second air duct segment 164 in the annular air duct 16 will change with each other as the inner air duct wall 162 and the outer air duct wall 161 rotate relative to each other. See, for example... Figure 4Currently, the left side of the annular air duct 16 is narrower, forming the second air duct segment 164; the right side is wider, forming the first air duct segment 163. If the guide member 2 rotates 180 degrees relative to the casing 1, the left side of the annular air duct 16 will widen, forming the first air duct segment 163; the right side will narrow, forming the second air duct segment 164. Therefore, the positional conversion between the first air duct segment 163 and the second air duct segment 164 is achieved.

[0070] In this configuration, the relative rotation of the inner duct wall 162 and the outer duct wall 161 is equivalent to the first duct section 163 and the second duct section 164 rotating synchronously along the circumference of the annular duct 16. Therefore, the airflow blown out from the outlet 12 is an annular airflow. Compared to vertically downward airflow, annular airflow can achieve a wider range of air delivery, effectively utilize surrounding air, and enhance airflow volume. Furthermore, annular airflow will not blow directly onto the human body, causing discomfort.

[0071] Among them, such as Figure 4 and Figure 8 As shown, at least one of the inner air duct wall 162 and the outer air duct wall 161 of the annular air duct 16 is a circumferentially asymmetrical structure, thereby forming a first air duct section 163 and a second air duct section 164 between the inner air duct wall 162 and the outer air duct wall 161.

[0072] It should be noted that, in this embodiment, the circumferential asymmetric structure refers to a structure with circumferential asymmetry, that is, a structure that is non-uniformly distributed or non-repetitive in the circumferential direction. By designing at least one of the inner air duct wall 162 and the outer air duct wall 161 as a circumferential asymmetric structure, the width of the annular air duct 16 at various positions in the circumferential direction is fluctuating and unequal. Consequently, the airflow magnitude and velocity blown out of the air outlet 12 at various positions of the annular air duct 16 are unequal, thus achieving airflow deflection. In this way, when the inner air duct wall 162 and / or the outer air duct wall 161 rotate, the airflow blown out from it can rotate 360° around the circumference of the annular air duct 16, that is, achieve annular air outlet, which can improve the uniformity of air outlet and increase the air supply range to a certain extent.

[0073] In some embodiments of this application, such as Figure 4 and Figure 5 As shown, the inner air duct wall 162 is formed by the outer wall of the guide member 2, and the outer wall of the guide member 2 has a circumferentially asymmetrical structure. The guide member 2 includes a guide block 21 and at least one first protrusion 22 protruding radially from the guide block 21 along the annular air duct 16. The guide block 21 has circumferential symmetry, and the at least one first protrusion 22 is non-uniformly distributed in the circumferential direction of the guide block 21.

[0074] At least one first protrusion 22 may include a plurality of protrusions with small circumferential dimensions and asymmetrically spaced intervals, or it may include strip-shaped protrusions with larger circumferential dimensions. After the guide member 2 is installed inside the fan housing 1, the distance between the portion of the guide member 2 with the first protrusion 22 and the inner wall of the fan housing 1 is usually relatively small, and the distance between the portion of the guide member 2 without the first protrusion 22 and the inner wall of the fan housing 1 is usually relatively large, thus achieving a non-uniform width distribution of the annular air duct 16.

[0075] For example, combined Figure 4 and Figure 5 As shown, the first protrusion 22 is a strip-shaped protrusion connected to the circumferential sidewall of the guide block 21. This strip-shaped protrusion extends circumferentially along the guide block 21, and the central angle between the two ends of the first protrusion 22 in the extension direction is β, 145°≤β≤180°. The first protrusion 22 with an extension arc within this range enables a more significant difference in the air volume between the first air duct section 163 and the second air duct section 164 in the annular air duct 16, thereby facilitating annular air outlet, increasing the air supply range, improving air supply flexibility, and enhancing the air outlet effect.

[0076] Optionally, when 160°≤β≤180°, the improvement in airflow effect is even better.

[0077] In some embodiments of this application, the first protrusion 22 has a lower surface 221 facing the air outlet 12, and the angle between the edge of the lower surface 221 away from the guide block 21 and the opening plane of the air outlet 12 is α, where 10°≤α≤45°. The edge of the outer air duct wall 161 near the air outlet 12 has an angle γ with the opening plane of the air outlet 12, where 0<γ≤α.

[0078] It is easy to understand that the edge of the lower surface 221 of the first protrusion 22 is the edge of the inner air duct wall 162. Generally speaking, when airflow flows from the annular air duct 16, some airflow will flow along the inner air duct wall 162, and some airflow will flow along the outer air duct wall 161.

[0079] In this embodiment, by making the angle α between the edge of the inner air duct wall 162 and the opening plane of the air outlet 12 satisfy: 10°≤α≤45°, the airflow can be directed toward the inside of the air outlet 12 when it flows along the edge of the lower surface 221 of the first protrusion 22, thereby avoiding the situation where there is no airflow inside the air outlet 12.

[0080] Furthermore, since the angle γ between the edge of the outer air duct wall 161 near the air outlet 12 and the opening plane of the air outlet 12 satisfies: 0 < γ ≤ α, the airflow along the outer air duct wall 161 and the airflow along the inner air duct wall 162 have different flow directions. As a result, these two airflows will influence each other and deflect after being blown out, thus forming a larger wind area and covering a significantly larger air supply range.

[0081] In some embodiments of this application, such as Figure 6 As shown, the wind casing 1 and the flow guide 2 satisfy: 1 / 4×(R3-R2)≤R3-R1≤1 / 2×(R3-R2); where R1 is the maximum outer diameter of the flow guide 2, R2 is the minimum outer diameter of the flow guide 2, and R3 is the maximum inner diameter of the wind casing 1.

[0082] Under the above conditions, the air volume of the first air duct section 163 and the second air duct section 164 in the annular air duct 16 reaches a relatively significant difference, which is conducive to realizing annular air outlet, increasing the air supply range and improving the air supply flexibility.

[0083] Optionally, the fan housing 1 and the air guide 2 satisfy the following condition: 1 / 3×(R3-R2)≤R3-R1≤1 / 2×(R3-R2). Within this range, the improvement in airflow performance is better.

[0084] In some embodiments of this application, see also [link to previous document]. Figure 6 The air outlet device includes a first driving member 3, which is positioned relative to the air casing 1 and connected to the guide member 2 to drive the guide member 2 to rotate.

[0085] The first driving component 3 is positioned relative to the fan housing 1, meaning that the part of the first driving component 3 other than the motion mechanism is fixed in position relative to the fan housing 1. The first driving component 3 may be mounted on the fan housing 1 or on other components of the air outlet device, such as the housing 6. The air outlet device drives the guide component 2 to rotate relative to the fan housing 1 via the first driving component 3.

[0086] In some embodiments, the air outlet device further includes a bracket 13 that limits relative to the air housing 1, the bracket 13 being located between the air inlet 11 and the air outlet 12, and allowing airflow to pass through. A guide 2 is located between the bracket 13 and the air outlet 12, and a first drive member 3 is mounted on the bracket 13.

[0087] The bracket 13 is fixed in position relative to the fan housing 1. The bracket 13 can be connected to the fan housing 1 or to the housing 6. The bracket 13 cannot completely block the air inlet 11, and needs to allow the airflow flowing in from the air inlet 11 to pass through, so as to ensure sufficient air intake.

[0088] For example, such as Figure 7As shown, the bracket 13 includes a fixed base 132 and a connecting part 131. The connecting part 131 includes two horizontal bars connected to both sides of the fixed base 132 in the transverse direction and two vertical bars connected to both sides of the fixed base 132 in the longitudinal direction. The ends of the two horizontal bars and the two vertical bars away from the fixed base 132 are connected to the inner wall of the air casing 1 to achieve fixation.

[0089] Optionally, such as Figure 6 As shown, the first driving component 3 may include a first motor 31, which is fixed in the fixed base 132, and the motor shaft of the first motor 31 is connected to the guide component 2, thereby driving the guide component 2 to rotate.

[0090] In other embodiments of this application, such as Figure 8 and Figure 9 As shown, the outer air duct wall 161 is formed by the inner wall of the air shell 1, and the inner wall of the air shell 1 has a circumferentially asymmetrical structure. The air shell 1 includes a shell body 14 and at least one second protrusion 15 protruding radially from the shell body 14 along the annular air duct 16. The at least one second protrusion 15 is non-uniformly distributed in the circumferential direction of the shell body 14.

[0091] At least one second protrusion 15 may include a plurality of protrusions with small circumferential dimensions and asymmetrically spaced intervals, or it may include strip-shaped protrusions with larger circumferential dimensions. After the air guide 2 is installed inside the air casing 1, the distance between the portion of the casing body 14 with at least one second protrusion 15 and the outer wall of the air guide 2 is generally relatively small, while the distance between the portion of the casing body 14 without the second protrusion 15 and the outer wall of the air guide 2 is generally relatively large, thus achieving a non-uniform width distribution of the annular air duct 16.

[0092] For example, such as Figure 9 As shown, the second protrusion 15 is a strip-shaped protrusion connected to the shell body 14. The strip-shaped protrusion extends circumferentially along the shell body 14. The central angle between the two ends of the second protrusion 15 in the extension direction is θ, 145°≤θ≤180°.

[0093] The second protrusion 15, whose curvature extends within this range, can make the air volume of the first air duct section 163 and the second air duct section 164 in the annular air duct 16 reach a more obvious difference, thereby facilitating the realization of annular air outlet, increasing the air supply range, improving air supply flexibility, and improving the air outlet effect.

[0094] Optionally, the improvement in airflow effect is better when 160°≤θ≤180°.

[0095] In some embodiments of this application, the portion of the shell body 14 with the second protrusion 15 is rotatable relative to the guide member 2 to achieve dynamic changes in the width of the annular air duct 16. See also Figure 8 and Figure 9 The shell body 14 includes a first sub-shell 141 and a second sub-shell 142 distributed along the axial direction of the annular air duct 16. The first sub-shell 141 is in contact with the second sub-shell 142 and can rotate relative to the second sub-shell 142. The first sub-shell 141 has an air inlet 11, and the second sub-shell 142 has an air outlet 12 and a second protrusion 15.

[0096] Optionally, the contact point between the first sub-shell 141 and the second sub-shell 142 is located at the position of the shell body 14 with the largest radial inner diameter. If the position of the shell body 14 with the largest radial inner diameter is located on the sub-shell, then when assembling the second sub-shell 142 onto the first sub-shell 141, the line of sight to the assembly position will be blocked by the first sub-shell 141, thus causing installation inconvenience. In this embodiment, the contact point between the first sub-shell 141 and the second sub-shell 142 is designed to be at the position of the shell body 14 with the largest radial inner diameter, which can improve the assembly convenience of the first sub-shell 141 and the second sub-shell 142 and reduce the assembly difficulty.

[0097] In some embodiments of this application, along the axial direction of the annular air duct 16, the contact mating points of the first sub-shell 141 and the second sub-shell 142 are misaligned with the outermost edge 23 of the guide member 2, wherein the outermost edge 23 of the guide member 2 is the edge portion with the largest radial dimension on the guide member 2.

[0098] Generally, a portion of the airflow within the annular duct 16 flows along the outer wall of the guide member 2, and the outermost edge 23 of the guide member 2 is where the airflow direction changes most significantly. If the outermost edge 23 of the guide member 2 is directly aligned with the contact area between the first sub-shell 141 and the second sub-shell 142, then the contact area between the first sub-shell 141 and the second sub-shell 142 will be subjected to airflow impact for a long time. This location happens to be the weakest point on the shell body 14, thus easily causing aging and damage. In this embodiment, the contact area between the first sub-shell 141 and the second sub-shell 142 is staggered from the outermost edge 23 of the guide member 2, which helps to improve the service life of the air casing 1 and effectively prevents airflow from overflowing from the contact area between the first sub-shell 141 and the second sub-shell 142.

[0099] In some embodiments of this application, the second protrusion 15 and the outermost edge 23 of the guide member 2 face each other and are spaced apart along the radial direction of the guide member 2. This allows the width of the annular duct 16 at this location to be smaller, thereby making the width difference between the various parts of the annular duct 16 more obvious, and thus achieving a better air outlet effect when the outer duct wall 161 and the inner duct wall 162 rotate relative to each other.

[0100] In some embodiments of this application, such as Figure 8 and Figure 10As shown, the air outlet device includes a second driving member 4, which is positioned relative to the panel 5 of the air outlet device and drives the second sub-shell 142 to rotate relative to the first sub-shell 141.

[0101] The second driving member 4 is positioned relative to the panel 5, meaning that the part of the second driving member 4 other than the motion mechanism is fixed in position relative to the panel 5. The second driving member 4 may be mounted on the panel 5 or on other components of the air outlet device, such as the housing 6. The air outlet device drives the second sub-casing 142 to rotate relative to the guide member 2 via the second driving member 4.

[0102] Optionally, such as Figure 10 As shown, the outer side of the second sub-shell 142 is provided with gear teeth 1421; the second driving member 4 includes a second motor 41, and the output gear 42 of the second motor 41 meshes with the gear teeth 1421 of the second sub-shell 142 to drive the second sub-shell 142 to rotate.

[0103] In summary, the air outlet device provided in this application embodiment has a larger air supply range and better air supply flexibility compared to the related technologies where air is supplied from one side and not from the other, or where air can only blow vertically downwards. This is because the width of the annular air duct 16 is unevenly distributed along the circumference and the width of each position in the annular air duct 16 can change dynamically.

[0104] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0105] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An air outlet device, characterized in that, The air outlet device includes a hollow air shell (1) and a guide (2) installed inside the air shell (1). The air shell (1) has an air inlet (11) and an air outlet (12). The guide (2) is located between the air inlet (11) and the air outlet (12). An annular air duct (16) for airflow is formed between the air casing (1) and the air guide (2). The width of the annular air duct (16) is unevenly distributed along its circumference. The annular air duct (16) includes an outer air duct wall (161) and an inner air duct wall (162) that are radially opposite each other. At least a portion of the outer air duct wall (161) and at least a portion of the inner air duct wall (162) can rotate relative to each other so that the width of the annular air duct (16) changes dynamically.

2. The air outlet device according to claim 1, characterized in that, The annular air duct (16) includes a first air duct segment (163) and a second air duct segment (164) distributed circumferentially. The width of the first air duct segment (163) is greater than the width of the second air duct segment (164). As the inner air duct wall (162) and the outer air duct wall (161) rotate relative to each other, the positions of the first air duct segment (163) and the second air duct segment (164) in the annular air duct (16) change.

3. The air outlet device according to claim 2, characterized in that, At least one of the inner air duct wall (162) and the outer air duct wall (161) is a circumferentially asymmetrical structure, thereby forming the first air duct segment (163) and the second air duct segment (164) between the inner air duct wall (162) and the outer air duct wall (161).

4. The air outlet device according to claim 3, characterized in that, The inner air duct wall (162) is formed by the outer wall of the guide member (2), and the outer wall of the guide member (2) has a circumferentially asymmetrical structure; The flow guide (2) includes a flow guide block (21) and at least one first protrusion (22) protruding radially from the flow guide block (21) along the annular air duct (16), wherein the at least one first protrusion (22) is non-uniformly distributed in the circumferential direction of the flow guide block (21).

5. The air outlet device according to claim 4, characterized in that, The first protrusion (22) is a strip-shaped protrusion connected to the circumferential sidewall of the guide block (21). The strip-shaped protrusion extends circumferentially along the guide block (21), and the central angle between the two ends of the first protrusion (22) in the extension direction is β, 145°≤β≤180°.

6. The air outlet device according to claim 5, characterized in that, 160°≤β≤180°。 7. The air outlet device according to claim 4, characterized in that, The angle between the edge of the lower surface (221) of the first protrusion (22) away from the guide block (21) and the opening plane of the air outlet (12) is α, 10°≤α≤45°, wherein the lower surface (221) is the surface of the first protrusion (22) facing the air outlet (12); and / or, The edge of the external air duct wall (161) near the air outlet (12) has an angle of γ with the opening plane of the air outlet (12), where 0 < γ ≤ α.

8. The air outlet device according to claim 4, characterized in that, The wind casing (1) and the flow guide (2) satisfy: 1 / 4×(R3-R2)≤R3-R1≤1 / 2×(R3-R2); Wherein, R1 is the maximum outer diameter of the guide (2), R2 is the minimum outer diameter of the guide (2), and R3 is the maximum inner diameter of the wind shell (1).

9. The air outlet device according to any one of claims 4-8, characterized in that, The air outlet device includes a first driving member (3), which is positioned relative to the air casing (1) and connected to the guide member (2) to drive the guide member (2) to rotate.

10. The air outlet device according to claim 9, characterized in that, The device further includes a bracket (13) that limits relative to the air casing (1), the bracket (13) being located between the air inlet (11) and the air outlet (12), wherein the bracket (13) allows airflow to pass through; The air guide (2) is located between the bracket (13) and the air outlet (12), and the first drive (3) is mounted on the bracket (13).

11. The air outlet device according to claim 3, characterized in that, The outer air duct wall (161) is formed by the inner wall of the air shell (1), and the inner wall of the air shell (1) has a circumferentially asymmetrical structure; The air casing (1) includes a casing body (14) and at least one second protrusion (15) protruding radially from the casing body (14) along the annular air duct (16), wherein the at least one second protrusion (15) is non-uniformly distributed in the circumferential direction of the casing body (14).

12. The air outlet device according to claim 11, characterized in that, The second protrusion (15) is a strip-shaped protrusion connected to the shell body (14). The strip-shaped protrusion extends circumferentially along the shell body (14). The central angle between the two ends of the second protrusion (15) in the extension direction is θ, 145°≤θ≤180°.

13. The air outlet device according to claim 11, characterized in that, The shell body (14) includes a first sub-shell (141) and a second sub-shell (142) distributed axially along the annular air duct (16). The first sub-shell (141) contacts the second sub-shell (142) and is rotatable relative to the second sub-shell (142). The first sub-shell (141) has the air inlet (11), and the second sub-shell (142) has the air outlet (12) and the second protrusion (15).

14. The air outlet device according to claim 13, characterized in that, The contact point between the first sub-shell (141) and the second sub-shell (142) is the position where the inner diameter of the shell body (14) is the largest in the radial direction.

15. The air outlet device according to claim 14, characterized in that, Along the axial direction of the annular air duct (16), the contact mating points of the first sub-shell (141) and the second sub-shell (142) are misaligned with the outermost edge (23) of the guide member (2), wherein the outermost edge (23) of the guide member (2) is the edge portion with the largest radial dimension on the guide member (2).

16. The air outlet device according to claim 15, characterized in that, Along the radial direction of the guide member (2), the second protrusion (15) and the outermost edge (23) of the guide member (2) face each other and are spaced apart.

17. The air outlet device according to any one of claims 13-16, characterized in that, The air outlet device includes a second drive member (4), which limits the air outlet device panel (5) and drives the second sub-shell (142) to rotate relative to the first sub-shell (141).

18. The air outlet device according to claim 17, characterized in that, The outer side of the second subshell (142) is provided with gear teeth (1421); The second drive unit (4) includes a second motor (41), the output gear (42) of the second motor (41) meshes with the gear teeth (1421) of the second sub-shell (142) to drive the second sub-shell (142) to rotate.

19. The air outlet device according to claim 17, characterized in that, The air outlet device is a bathroom heater, a ceiling fan, or a fan light.

Images